The lines of force of the three primary elbow flexors - lecture

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Questions and Answers

What is the percentage difference between flexion torques and extensor torques in the elbow?

  • 50%
  • 70% (correct)
  • 90%
  • 110%

Which joint has greater extensor torques than flexor torques?

  • Elbow
  • Knee (correct)
  • Shoulder
  • Wrist

What is the functional demand placed on elbow flexors?

  • Minimal
  • Moderate
  • High (correct)
  • Very high

Which muscle is a strong supinator of the forearm?

<p>Biceps brachii (D)</p> Signup and view all the answers

How much greater are flexor torques when the forearm is supinated compared to when it is pronated?

<p>20-25% (D)</p> Signup and view all the answers

What is the primary function of the elbow flexors?

<p>Flexion (D)</p> Signup and view all the answers

Which joint has a similar demand placed on its extensors as the elbow flexors?

<p>Knee (D)</p> Signup and view all the answers

Which muscle is not one of the primary elbow flexors?

<p>Triceps brachii (D)</p> Signup and view all the answers

Which muscle is not involved in forearm supination?

<p>Pronator teres (C)</p> Signup and view all the answers

What is the percentage difference between flexor torques with a pronated forearm and no resistance compared to a supinated forearm and no resistance?

<p>20-25% (D)</p> Signup and view all the answers

Which muscle is not involved in elbow flexion?

<p>Triceps brachii (C)</p> Signup and view all the answers

Which joint has a greater demand placed on its flexors than its extensors?

<p>Elbow (A)</p> Signup and view all the answers

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